Lu Xin and the others had already learned from Black Jack's information that Black Swamp city didn't have a real Special Investigation Department.
They used the method of grazing ability users to solve the special pollution through the grazing ability users, and even regarded them as part of the power they controlled. However, he was still a little confused about how they had the ability to herd livestock. It was only until now, when he saw the people wearing collars around their necks, that he understood the general principle behind the grazing method ...
Anyone who wore a collar on their neck was an ability user.
Lu Xin had no idea how they managed to put the collar on the aptitude users, but when he looked at them, he could feel that their spirits were strangely empty. They seemed to be in a trance and illusory state, and he could sense the aura of black grass.
It was clear that this method of control had something to do with the black grass.
